Modelling the Transformation from Snow to Ice Based on the Underlying Sintering Process
In cold regions of the earth, like Antarctica, Greenland or mountains at high altitude, the annual amount of deposited snow exceeds the amount of snow melting. Snow, which is more than one year old, is called firn. Over time firn transforms into ice by a sintering process, mainly driven by overburde...
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ftunivkaisers:oai:kluedo.ub.rptu.de:7995 2024-05-12T07:53:55+00:00 Modelling the Transformation from Snow to Ice Based on the Underlying Sintering Process Schultz, Timm Müller, Ralf Gross, Dietmar Humbert, Angelika 2021 application/pdf https://kluedo.ub.rptu.de/frontdoor/index/index/docId/7995 https://nbn-resolving.org/urn:nbn:de:hbz:386-kluedo-79952 https://doi.org/10.1002/pamm.202000212 https://kluedo.ub.rptu.de/files/7995/Timm%20Schultz%2010.1002pamm.202000212.pdf eng eng https://kluedo.ub.rptu.de/frontdoor/index/index/docId/7995 urn:nbn:de:hbz:386-kluedo-79952 https://nbn-resolving.org/urn:nbn:de:hbz:386-kluedo-79952 https://doi.org/10.1002/pamm.202000212 https://kluedo.ub.rptu.de/files/7995/Timm%20Schultz%2010.1002pamm.202000212.pdf Zweitveröffentlichung http://www.gesetze-im-internet.de/urhg/__38.html info:eu-repo/semantics/openAccess ddc:620 article doc-type:article 2021 ftunivkaisers https://doi.org/10.1002/pamm.202000212 2024-04-17T14:01:22Z In cold regions of the earth, like Antarctica, Greenland or mountains at high altitude, the annual amount of deposited snow exceeds the amount of snow melting. Snow, which is more than one year old, is called firn. Over time firn transforms into ice by a sintering process, mainly driven by overburden pressure and temperature. This ultimately leads to the formation of glaciers and ice sheets. We simulate firn densification based on the processes of sintering. The constitutive law represents grain boundary sliding, dislocation creep and diffusion. These mechanisms sum up to the overall densification which leads to the transformation of snow to ice. The model aims at obtaining a physics driven simulation tool for firn densification which provides data for a wider range of areas. It will contribute to develop better models and better understanding of the cryosphere. Article in Journal/Newspaper Antarc* Antarctica Greenland KLUEDO - Publication Server of University of Kaiserslautern-Landau (RPTU) Greenland PAMM 20 1 |
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KLUEDO - Publication Server of University of Kaiserslautern-Landau (RPTU) |
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English |
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ddc:620 |
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ddc:620 Schultz, Timm Müller, Ralf Gross, Dietmar Humbert, Angelika Modelling the Transformation from Snow to Ice Based on the Underlying Sintering Process |
topic_facet |
ddc:620 |
description |
In cold regions of the earth, like Antarctica, Greenland or mountains at high altitude, the annual amount of deposited snow exceeds the amount of snow melting. Snow, which is more than one year old, is called firn. Over time firn transforms into ice by a sintering process, mainly driven by overburden pressure and temperature. This ultimately leads to the formation of glaciers and ice sheets. We simulate firn densification based on the processes of sintering. The constitutive law represents grain boundary sliding, dislocation creep and diffusion. These mechanisms sum up to the overall densification which leads to the transformation of snow to ice. The model aims at obtaining a physics driven simulation tool for firn densification which provides data for a wider range of areas. It will contribute to develop better models and better understanding of the cryosphere. |
format |
Article in Journal/Newspaper |
author |
Schultz, Timm Müller, Ralf Gross, Dietmar Humbert, Angelika |
author_facet |
Schultz, Timm Müller, Ralf Gross, Dietmar Humbert, Angelika |
author_sort |
Schultz, Timm |
title |
Modelling the Transformation from Snow to Ice Based on the Underlying Sintering Process |
title_short |
Modelling the Transformation from Snow to Ice Based on the Underlying Sintering Process |
title_full |
Modelling the Transformation from Snow to Ice Based on the Underlying Sintering Process |
title_fullStr |
Modelling the Transformation from Snow to Ice Based on the Underlying Sintering Process |
title_full_unstemmed |
Modelling the Transformation from Snow to Ice Based on the Underlying Sintering Process |
title_sort |
modelling the transformation from snow to ice based on the underlying sintering process |
publishDate |
2021 |
url |
https://kluedo.ub.rptu.de/frontdoor/index/index/docId/7995 https://nbn-resolving.org/urn:nbn:de:hbz:386-kluedo-79952 https://doi.org/10.1002/pamm.202000212 https://kluedo.ub.rptu.de/files/7995/Timm%20Schultz%2010.1002pamm.202000212.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_relation |
https://kluedo.ub.rptu.de/frontdoor/index/index/docId/7995 urn:nbn:de:hbz:386-kluedo-79952 https://nbn-resolving.org/urn:nbn:de:hbz:386-kluedo-79952 https://doi.org/10.1002/pamm.202000212 https://kluedo.ub.rptu.de/files/7995/Timm%20Schultz%2010.1002pamm.202000212.pdf |
op_rights |
Zweitveröffentlichung http://www.gesetze-im-internet.de/urhg/__38.html info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/pamm.202000212 |
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